private Vector3 TryPlaceTown(List<Vector3> Others)
{
//Save the time it takes to call _world.GetBlockManager
BlockManager bm = _world.GetBlockManager ();
int x = (int)(_rand.Next () * _xMax);
int z = (int)(_rand.Next () * _zMax);
Vector3 tr = new Vector3 ();
tr.X = x;
tr.Z = z;
tr.Y = bm.GetHeight (x, z);
//Make sure that +- town radius is inside the world
if (x - 10 < 0 || z - 10 < 0 || z + 10 > _zMax || x + 10 > _xMax)
return null;
//Get the min and max y values inside the town radius and make sure that they are within +- 5
int yMin = 0;
int yMax = 128;
for (int xx = x - 10; xx < x + 10; ++xx) {
for (int zz = z - 10; zz < z + 10; ++zz) {
int h = bm.GetHeight (xx, zz);
yMin = Min (yMin, h);
yMax = Max (yMax, h);
}
}
//Difference is > +- 10 from orrigin.
if (yMax - yMin > 10)
return null;
//Make sure that the towns are atleast 5 * the town radius appart
foreach (Vector3 v in Others) {
if (SquaredDistance (v, tr) < 25 * TOWN_RAD * TOWN_RAD)
return null;
}
return tr;
}
private double SquaredDistance(Vector3 One, Vector3 Two)
{
double xDif = One.X - Two.X;
double yDif = One.Y - Two.Y;
double zDif = One.Z - Two.Z;
return xDif * xDif + yDif * yDif + zDif * zDif;
}